Flask



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FIG. 1 is a perspective view of the flask showing the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof, all side elevational views being identical thereto; and,

FIG. 5 is an exploded perspective view showing the internal components of the flask.

This design consists in a flask, constituted by a cubic body, with edges manifestly rounded and divided in a transversal central plane. Every one of the two halves presents a cavity in its internal face, of concave conformation and that presents in its mouthpiece an encircling step slot. In the interior of every one of these cavities there is a bowl and present respectively in their contour a prominent edge disposed in the encircling slot of the corresponding cavity. The cited edge presents radial teeth in correspondence with the diagonals of square face. The inferior bowl presents its mouthpiece prolonged in a cylindrical part in which there are protruding means cooperating with incomings existents in the interior of the superior bowl, like a bayonet. Over this cylindrical part there is a transversal disk, with circular contour and that presents an internal encircling nerve. The cited superior bowl presents a salient step disposed immediately over the cited nerve of the disk. 

The ornamental design for a flask, as shown and described. 